Design Optimization of Terahertz Near-Field Detectors

O. Mitrofanov, R. Harel, M. Lee, J. W.P. Hsu, J. D. Wynn, J. Federici

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Spatial resolution of the near-field imaging technique with Terahertz pulses is mainly limited by strong signal attenuation in the aperture of the probe. We demonstrate that probe sensitivity can be significantly improved by placing a detecting element into the near-field zone of the probe aperture. In this case the evanescent modes of the field transmitted through the aperture contribute to the detected signal. Electric field is experimentally measured in the near-field zone of a subwavelength aperture. Numerical calculations based on a simple two-dimensional model are used to analyze effects of the probe geometry.

Original languageEnglish (US)
Title of host publicationUltrafast Electronics and Optoelectronics, UEO 2001
PublisherOptica Publishing Group (formerly OSA)
ISBN (Electronic)1557526591
StatePublished - 2001
EventUltrafast Electronics and Optoelectronics, UEO 2001 - Lake Tahoe, United States
Duration: Jan 10 2001 → …

Publication series

NameOptics InfoBase Conference Papers
ISSN (Electronic)2162-2701


ConferenceUltrafast Electronics and Optoelectronics, UEO 2001
Country/TerritoryUnited States
CityLake Tahoe
Period1/10/01 → …

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials


Dive into the research topics of 'Design Optimization of Terahertz Near-Field Detectors'. Together they form a unique fingerprint.

Cite this